Chapter 23: Polymers and Alcohols

Polymerisation

________ happens when the double carbon bond breaks, allowing another alkene to connect to the carbon.

Yeast contains

________ enzymes that break down sugar to glucose.

CH3CH2OH

Ethanol can be represented as ________.

Polymers

________ are long molecules made up of hundreds or thousands of repeating subunits.

yeast

The ________ respire anaerobically using the glucose to form ethanol and carbon dioxide:

Addition polymers

________ are formed by joining lots of alkene molecules together.

Alcohols

________ contain a bond between O- H, where the oxygen is bonded to a carbon.

fermentation

It can be produced by ________ where sugar or starch is dissolved in water and yeast is added.

Ethanol

________ (C2H5OH) is one of the most important alcohols.

single alkene

The ________ is called a monomer and when several monomers are connected together, we call this a polymer.

Lets say we have a polymer made up of lots of ethene molecules joined together

this would be called poly(ethene), which we also refer to as polythene

Polythene is everywhere

youll find it in things like plastic water bottles, bin liners and hose pipes

Four alkenes

ethene, propene, butene, pentene

Alkene

unsaturated hydrocarbons

ethanol can made by

_____fermentation

Sugar makes

___ethanol and carbon dioxide, by yeast

Acidic

having the properties of an acid, or containing acid; having a pH below 7.

Plastics

made up of long chain molecules called polymers

Monomers

make up addition polymers have a double covalent bond

Polymer+alkene

poly